Information about Pineapple

Pineapple
A pineapple, on its parent plant A pineapple, on its parent plant
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Liliopsida Order: Poales Family: Bromeliaceae Subfamily: Bromelioideae Genus: Ananas Species: A. comosus
Binomial name
Ananas comosus (L.) Merr.
Synonyms
Ananas sativus

The pineapple (Ananas comosus) is a tropical plant and fruit (multiple), probably native to Uruguay, Brazil or Paraguay. It is a tall (1–1.5 m) herbaceous perennial plant with 30 or more trough-shaped and pointed leaves 30–100 cm long, surrounding a thick stem. The pineapple is an example of a multiple fruit: multiple, spirally-arranged flowers along the axis each produce a fleshy fruit that becomes pressed against the fruits of adjacent flowers, forming what appears to be a single fleshy fruit. The leaves of the Smooth Cayenne cultivar mostly lack spines except at the leaf tip, but the Spanish and Queen cultivars have large spines along the leaf margins. Pineapples are the only bromeliad fruit in widespread cultivation. It is one of the most commercially important plants which carry out Crassulacean acid metabolism, or CAM photosynthesis.

Etymology

The name pineapple in English (or piña in Spanish) comes from the similarity of the fruit to a pine cone. The word "pineapple", first recorded in 1398, was originally used to describe the reproductive organs of conifer trees (now termed pine cones). When European explorers discovered this tropical fruit, they called them "pineapples" (term first recorded in that sense in 1664) because it resembled what we know as pine cones. The term "pine cone" was first recorded in 1695 to replace the original meaning of "pineapple".^[1]

In the scientific binomial Ananas comosus, ananas, the original name of the fruit, comes from the Tupi (Rio de Janeiro, Brazil) word for pineapple nanas, as recorded by André Thevenet in 1555 and comosus means "tufted" and refers to the stem of the fruit. Other members of the Ananas genus are often called pineapple as well by laymen.

A large, sweet pineapple grown especially in Brazil is called "abacaxi".

A well known popular term for a pineapple is the word 'Maltman'. This is just another term to phrase the way the pineapple is shaped, and was given due to the Maltman haircut which bears a striking resemblance to a pineapple.

Wild pineapples

Certain bat-pollinated wild pineapples, members of the bromeliad family, do the exact opposite of most flowers by opening their flowers at night and closing them during the day; this protects them from weevils, which are most active during daylight hours.

Fruit

The fruitlets of a pineapple are arranged in two interlocking spirals, eight spirals in one direction, thirteen in the other; each being a Fibonacci number. This is one of many examples of Fibonacci numbers appearing in nature.

The natural (or most common) pollinator of the pineapple is the hummingbird. Pollination is required for seed formation; the presence of seeds negatively affects the quality of the fruit. In Hawaii, where pineapple is cultivated on an agricultural scale, importation of hummingbirds is prohibited for this reason.



At one time, most canned and fresh pineapples came from the cultivar "Smooth Cayenne". Since about 2000, the most common fresh pineapple fruit found in U.S. and European supermarkets is a low-acid hybrid that was developed in Hawaii in the early 1970s. Pineapple is commonly used in desserts and other types of fruit dishes, or served on its own. Fresh pineapple is often somewhat expensive as the tropical fruit is delicate and difficult to ship. Pineapples can ripen after harvest, but require certain temperatures for this process to occur. The ripening of pineapples can be rather difficult as they will not ripen for some time and in a day or two become over-ripe, therefore, pineapples are most widely available canned.

Dietary effects

Pineapple, raw Nutritional value per 100 g (3.5 oz)
Energy 0 kcal   0 kJ
Carbohydrates     12.63 g - Sugars  9.26 g - Dietary fiber  1.4 g   Fat 0.12 g Protein 0.54 g Thiamin (Vit. B1)  0.079 mg   0% Riboflavin (Vit. B2)  0.031 mg   0% Niacin (Vit. B3)  0.489 mg   0% Pantothenic acid (B5)  0.205 mg  0% Vitamin B6  0.110 mg 0% Folate (Vit. B9)  15 μg  0% Vitamin C  36.2 mg 0% Calcium  13 mg 0% Iron  0.28 mg 0% Magnesium  12 mg 0%  Phosphorus  8 mg 0% Potassium  115 mg   0% Zinc  0.10 mg 0%
Percentages are relative to US recommendations for adults. Source: USDA Nutrient database

Pineapple contains a proteolytic enzyme bromelain, which digests food by breaking down protein. Pineapple juice can thus be used as a marinade and tenderizer for meat. The enzymes in pineapples can interfere with the preparation of some foods, such as jelly or other gelatin-based desserts. These enzymes can be hazardous to someone suffering from certain protein deficiencies or disorders, such as Ehlers-Danlos syndrome. There is significant evidence pointing to the anti-inflammatory benefits of bromelain.

Some have claimed that pineapple has benefits for some intestinal disorders while others claim that it helps to induce childbirth when a baby is overdue.^[2] Due to its high acidity, some people believe that excessive pineapple consumption can lead to erosion of the stomach lining, but may not be true.

Fresh pineapple may cause irritation of the tip of the tongue in some cases. Some may describe this sensation as a raw tingling. Some believe that dipping pineapple slices in a mildly saline aqueous solution will negate this effect and may also intensify the pineapple flavor.

Pineapple is a good source of manganese (91 %DV in a 1 cup serving), as well as containing significant amounts of Vitamin C (94 %DV in a 1 cup serving) and Vitamin B1 (8 %DV in a 1 cup serving). ^[3]

Cultivation history

The pineapple spread from its original area (central South America) through cultivation, and by the time of Christopher Columbus (1492) it grew throughout South and Central America, southern Mexico and the Caribbean (West Indies). Columbus may have taken a sample back to Europe. The Spanish introduced it into the Philippines, Hawaii (introduced in the early 19th century, first commercial plantation 1886) and Guam. The fruit was successfully cultivated in European hothouses, and pineapple pits, beginning in 1720. Commonly cultivated varieties include Red Spanish, Hilo, Smooth Cayenne, St. Michael, Kona Sugarloaf, Natal Queen, and Pernambuco. Canned pineapple is almost always Smooth Cayenne.

Pineapple cultivation in the USA began in the early 1900s on Hawaii. Dole and Del Monte began growing pineapple on the island of Oahu in 1901 and 1917, respectively. Maui Pineapple Company began pineapple cultivation on the island of Maui in 1909. In 2006, Del Monte announced its withdrawal from pineapple cultivation in Hawaii, leaving only Dole and Maui Pineapple Company in Hawaii as the USA’s largest growers of pineapples. Maui Pineapple Company markets its Maui Gold® brand of pineapple and Dole markets its Hawaii Gold® brand of pineapple.

In the USA in 1986, the Pineapple Research Institute was dissolved and its assets were divided between Del Monte and Maui Land and Pineapple. Del Monte took 73-114, which it dubbed MD-2, to its plantations in Costa Rica, found it to be well-suited to growing there, and launched it publicly in 1996. (Del Monte also began marketing 73-50, dubbed CO-2, as Del Monte Gold). In 1997, Del Monte began marketing its Gold Extra Sweet pineapple, known internally as MD-2. MD-2 is a hybrid that originated in the breeding program of the now-defunct Pineapple Research Institute in Hawaii, which conducted research on behalf of Del Monte, Maui Land & Pineapple Company, and Dole.

Southeast Asia dominates world production: in 2001 Thailand produced 1.979 million tons, the Philippines 1.618 million tons while in the Americas, Brazil 1.43 million tons. Total world production in 2001 was 14.220 million tons. The primary exporters of fresh pineapples in 2001 were Costa Rica, 322,000 tons; Côte d'Ivoire, 188,000 tons; and the Philippines, 135,000 tons.

In commercial farming, flowering can be artificially induced and the early harvesting of the main fruit can encourage the development of a second crop of smaller fruits.

Pineapple Reproduction

Once removed during cleaning, the top of the pineapple can be planted in soil and a new fruit bearing plant will grow in a similar manner that a potato or onion will resprout from a cutting.

Cultivars

• Hilo: A compact 2-3 lb. Hawaiian variant of the Smooth Cayenne. The fruit is more cylindrical and produces many suckers but no slips.
• Kona Sugarloaf: 5-6 lbs, white flesh with no woodiness in the center. Cylindrical in shape, it has a high sugar content but no acid. An unusually sweet fruit.
• Natal Queen: 2-3 lbs, golden yellow flesh, crisp texture and delicate mild flavor. Well adapted to fresh consumption. Keeps well after ripening. Leaves spiny.
• Pernambuco (Eleuthera): 2-4 lbs with pale yellow to white flesh. Sweet, melting and excellent for eating fresh. Poorly adapted for shipping. Leaves spiny.
• Red Spanish: 2-4 lbs, pale yellow flesh with pleasant aroma; squarish in shape. Well adapted for shipping as fresh fruit to distant markets. Leaves spiny.
• Smooth Cayenne: 5-6 lbs, pale yellow to yellow flesh. Cylindrical in shape and with high sugar and acid content. Well adapted to canning and processing. Leaves without spines. This is the variety from Hawaii, and the most easily obtainable in U.S. grocery stores. Both 73-114 and 73-50 are of this cultivar.

Ethno medical uses

The root and fruit are either eaten or applied topically as an anti-inflammatory and as a proteolytic agent. It is traditionally used as an antihelminthic agent in the Philippines.^[4]

A root decoction is used to treat diarrhea.

Diseases of pineapple

Main article: List of pineapple diseases

Pineapples are subject to a variety of diseases,^[5] the most serious of which is wilt disease vectored by mealybugs.^[6] The mealybugs are generally found on the surface of pineapples, but can also be found inside the closed blossom cups.^[7] Other diseases include pink disease,^[8] bacterial heart rot, and anthracnose.

Storage

Pineapples, like bananas, are chill-sensitive. Therefore, they should not be stored in the refrigerator. ^[9]

Other uses and trivia

• The fibers of the pineapple leaf can be extracted to produce the piña textile.
• The pineapple is an old symbol of hospitality and can often be seen in carved decorations (untufted pineapples are sometimes mistaken for pine cones).
• The World War II Mark 2 hand grenade was commonly known as the "pineapple" because of the grooves cut into its surface. Writer Ian Fleming employed "pineapple" as a slang term for a grenade in his James Bond novels.
• It was once thought, especially among college campus circles, that ingesting pineapple products would favorably affect the taste of semen. According to one medical expert, however, this claim is implausible.^[10]
• Pineapple is the name of one version of community card poker, very close in play to Texas hold 'em.
• In order to enjoy pineapple without the painful effects of its acidity on your mouth, simply roll the peeled fruit in a little table salt.
• The Moche people of ancient Peru worshipped fruits and often depicted pineapple in their art. ^[11]
• Cartoon character SpongeBob SquarePants' house is a Pineapple.

Gallery

Pineapples and other tropical fruit, in a Peruvian market.	A pineapple	Pineapple fruit on display at a supermarket.	'Victoria', a cultivar of small, sugary and flavourful pineapples, is particularly popular on Réunion Island.
Pineapple etching	Split pineapple	Ornamental Pineapple	A Pink Pineapple grown in the Eden Project.

References

External links

• USDA Hawaii Agricultural Statistics - Pineapple yields 2001-2005
• Social History of the Pineapple - a look at the symbolism behind the pineapple
• Pineapple Fruit Facts - Information on pineapples from California Rare Fruit Growers, Inc.
• The price of pineapples - Pesticide pollution in Costa Rica
• FAO. Tropical Fruits Commodity Notes, 2003
• Francesca Beauman, 'The Pineapple', ISBN 0-7011-7699-7, publisher Chatto and Windus
• Pineapple Nutrition
• Jahn, G. C. 1990. The role of the big-headed ant in mealybug wilt of pineapple. In G.K. Veeresh, B. Malik, and C. Viraktamath [eds.] "Social Insects and the Environment." Oxford & IBH Publishing Co., New Delhi, 614-615.
• Jahn, G. C. 1995. Gray pineapple mealybugs, Dysmicoccus neobrevipes Beardsley, found inside of pineapple fruit. Proc. Hawaiian Entomol. Soc. 32: 147-148.
• Jahn, Gary C., J. W. Beardsley and H. González-Hernández 2003. A review of the association of ants with mealybug wilt disease of pineapple. Proceedings of the Hawaiian Entomological Society. 36:9-28.